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Nonreciprocal optical bistability based on Doppler effect in a three-level atomic system
Optics Communications ( IF 2.4 ) Pub Date : 2021-02-11 , DOI: 10.1016/j.optcom.2021.126862
Wenjia Shi , Hongjun Zhang , Hui Sun , Peng Wang

We theoretically study nonreciprocal optical bistability in a three-level Λ-type atomic system with the Doppler broadening within a unidirectional ring cavity. The results show that the nonreciprocity optical bistability can be realized by means of the forward or backward probe field propagation. Under the appropriate parameters, the optical isolation ratio and the width of the optical nonreciprocity (ONR) region are sensitive to the probe-detuning, coupling-detuning, coupling-intensity, and the atomic number density. Our work may provide some suggestions for designing nonreciprocal devices such as optical isolators, diodes, and circulators.



中文翻译:

三能级原子系统中基于多普勒效应的不可逆光学双稳态

从理论上讲,我们在三个层次上研究了不可逆的光学双稳态 Λ型原子系统,多普勒在单向环形腔内展宽。结果表明,可以通过向前或向后探测场传播来实现不可逆的光学双稳态。在适当的参数下,光学隔离率和光学不可逆(ONR)区域的宽度对探针失谐,耦合失谐,耦合强度和原子序数密度敏感。我们的工作可能会为设计不可逆的器件(如光隔离器,二极管和环行器)提供一些建议。

更新日期:2021-02-19
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